This was 4.5 percent higher than the state average of 41.8 percent. In 2020 the total municipality population reached 636.
93.9 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Polonia for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 28 | 6.1 |
| Regular high school diploma | 142 | 30.9 |
| GED or alternative credential | 0 | 0 |
| Some college, less than 1 year | 21 | 4.6 |
| Some college, 1 or more years, no degree | 56 | 12.2 |
| Associate's degree | 49 | 10.7 |
| Bachelor's degree | 93 | 20.2 |
| Master's degree | 71 | 15.4 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
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